Streptococcus pneumonia is the leading cause of bacterial pneumonia. It can enter your lungs through inhalation or through your bloodstream. There is a vaccination for this type. Haemophilus influenzae is the second most common cause of bacterial pneumonia.
The droppings are similar in color to the wood residue that the insects spill as they eat. Subterranean termite droppings are soft and used in constructing nests, whereas drywood termite droppings are hard and look like piles of sawdust, according to Extension.org.
Termite Droppings: Frass. The first sign of a termite infestation may be wormlike mud tunnels that run up walls or foundations. Termites are particularly attracted to damp wood which may be found in basements and tunnels, so termites are often discovered either within basements or emerging from them.